Memory storage device



FIG. 1 is a perspective view of a memory storage device;

FIG. 2 is a front view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a back view thereof;

FIG. 6 is a left side thereof; and,

FIG. 7 is a top view thereof. 

We claim the ornamental design for the memory storage device, as shown and described. 